If you need to write an essay, a book report, or even a typewritten letter, Google Docs is the app to use. Those who have used Microsoft Word before would find similarities between that and Google Docs. What's awesome about Google Docs though is that it's collaborative--you can share the same document with your classmate and you can work on it at the same time! Isn't that cool? It's great if you are working on a project together like a book report or a brochure.
Just remember that for us to maximize the use of Google Docs, we have to be online (or connected to the internet). Although we can still use Google Docs without the internet, there might be a few limitations.